backends/cryptodev.c

   1 /*
   2  * QEMU Crypto Device Implementation
   3  *
   4  * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
   5  *
   6  * Authors:
   7  *    Gonglei <arei.gonglei@huawei.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  21  *
  22  */
  23
  24 #include "qemu/osdep.h"
  25 #include "sysemu/cryptodev.h"
  26 #include "sysemu/stats.h"
  27 #include "qapi/error.h"
  28 #include "qapi/qapi-commands-cryptodev.h"
  29 #include "qapi/qapi-types-stats.h"
  30 #include "qapi/visitor.h"
  31 #include "qemu/config-file.h"
  32 #include "qemu/error-report.h"
  33 #include "qemu/main-loop.h"
  34 #include "qom/object_interfaces.h"
  35 #include "hw/virtio/virtio-crypto.h"
  36
  37 #define SYM_ENCRYPT_OPS_STR "sym-encrypt-ops"
  38 #define SYM_DECRYPT_OPS_STR "sym-decrypt-ops"
  39 #define SYM_ENCRYPT_BYTES_STR "sym-encrypt-bytes"
  40 #define SYM_DECRYPT_BYTES_STR "sym-decrypt-bytes"
  41
  42 #define ASYM_ENCRYPT_OPS_STR "asym-encrypt-ops"
  43 #define ASYM_DECRYPT_OPS_STR "asym-decrypt-ops"
  44 #define ASYM_SIGN_OPS_STR "asym-sign-ops"
  45 #define ASYM_VERIFY_OPS_STR "asym-verify-ops"
  46 #define ASYM_ENCRYPT_BYTES_STR "asym-encrypt-bytes"
  47 #define ASYM_DECRYPT_BYTES_STR "asym-decrypt-bytes"
  48 #define ASYM_SIGN_BYTES_STR "asym-sign-bytes"
  49 #define ASYM_VERIFY_BYTES_STR "asym-verify-bytes"
  50
  51 typedef struct StatsArgs {
  52     union StatsResultsType {
  53         StatsResultList **stats;
  54         StatsSchemaList **schema;
  55     } result;
  56     strList *names;
  57     Error **errp;
  58 } StatsArgs;
  59
  60 static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients;
  61
  62 static int qmp_query_cryptodev_foreach(Object *obj, void *data)
  63 {
  64     CryptoDevBackend *backend;
  65     QCryptodevInfoList **infolist = data;
  66     uint32_t services, i;
  67
  68     if (!object_dynamic_cast(obj, TYPE_CRYPTODEV_BACKEND)) {
  69         return 0;
  70     }
  71
  72     QCryptodevInfo *info = g_new0(QCryptodevInfo, 1);
  73     info->id = g_strdup(object_get_canonical_path_component(obj));
  74
  75     backend = CRYPTODEV_BACKEND(obj);
  76     services = backend->conf.crypto_services;
  77     for (i = 0; i < QCRYPTODEV_BACKEND_SERVICE__MAX; i++) {
  78         if (services & (1 << i)) {
  79             QAPI_LIST_PREPEND(info->service, i);
  80         }
  81     }
  82
  83     for (i = 0; i < backend->conf.peers.queues; i++) {
  84         CryptoDevBackendClient *cc = backend->conf.peers.ccs[i];
  85         QCryptodevBackendClient *client = g_new0(QCryptodevBackendClient, 1);
  86
  87         client->queue = cc->queue_index;
  88         client->type = cc->type;
  89         QAPI_LIST_PREPEND(info->client, client);
  90     }
  91
  92     QAPI_LIST_PREPEND(*infolist, info);
  93
  94     return 0;
  95 }
  96
  97 QCryptodevInfoList *qmp_query_cryptodev(Error **errp)
  98 {
  99     QCryptodevInfoList *list = NULL;
 100     Object *objs = container_get(object_get_root(), "/objects");
 101
 102     object_child_foreach(objs, qmp_query_cryptodev_foreach, &list);
 103
 104     return list;
 105 }
 106
 107 CryptoDevBackendClient *cryptodev_backend_new_client(void)
 108 {
 109     CryptoDevBackendClient *cc;
 110
 111     cc = g_new0(CryptoDevBackendClient, 1);
 112     QTAILQ_INSERT_TAIL(&crypto_clients, cc, next);
 113
 114     return cc;
 115 }
 116
 117 void cryptodev_backend_free_client(
 118                   CryptoDevBackendClient *cc)
 119 {
 120     QTAILQ_REMOVE(&crypto_clients, cc, next);
 121     g_free(cc->info_str);
 122     g_free(cc);
 123 }
 124
 125 void cryptodev_backend_cleanup(
 126              CryptoDevBackend *backend,
 127              Error **errp)
 128 {
 129     CryptoDevBackendClass *bc =
 130                   CRYPTODEV_BACKEND_GET_CLASS(backend);
 131
 132     if (bc->cleanup) {
 133         bc->cleanup(backend, errp);
 134     }
 135
 136     g_free(backend->sym_stat);
 137     g_free(backend->asym_stat);
 138 }
 139
 140 int cryptodev_backend_create_session(
 141            CryptoDevBackend *backend,
 142            CryptoDevBackendSessionInfo *sess_info,
 143            uint32_t queue_index,
 144            CryptoDevCompletionFunc cb,
 145            void *opaque)
 146 {
 147     CryptoDevBackendClass *bc =
 148                       CRYPTODEV_BACKEND_GET_CLASS(backend);
 149
 150     if (bc->create_session) {
 151         return bc->create_session(backend, sess_info, queue_index, cb, opaque);
 152     }
 153     return -VIRTIO_CRYPTO_NOTSUPP;
 154 }
 155
 156 int cryptodev_backend_close_session(
 157            CryptoDevBackend *backend,
 158            uint64_t session_id,
 159            uint32_t queue_index,
 160            CryptoDevCompletionFunc cb,
 161            void *opaque)
 162 {
 163     CryptoDevBackendClass *bc =
 164                       CRYPTODEV_BACKEND_GET_CLASS(backend);
 165
 166     if (bc->close_session) {
 167         return bc->close_session(backend, session_id, queue_index, cb, opaque);
 168     }
 169     return -VIRTIO_CRYPTO_NOTSUPP;
 170 }
 171
 172 static int cryptodev_backend_operation(
 173                  CryptoDevBackend *backend,
 174                  CryptoDevBackendOpInfo *op_info)
 175 {
 176     CryptoDevBackendClass *bc =
 177                       CRYPTODEV_BACKEND_GET_CLASS(backend);
 178
 179     if (bc->do_op) {
 180         return bc->do_op(backend, op_info);
 181     }
 182     return -VIRTIO_CRYPTO_NOTSUPP;
 183 }
 184
 185 static int cryptodev_backend_account(CryptoDevBackend *backend,
 186                  CryptoDevBackendOpInfo *op_info)
 187 {
 188     enum QCryptodevBackendAlgType algtype = op_info->algtype;
 189     int len;
 190
 191     if (algtype == QCRYPTODEV_BACKEND_ALG_ASYM) {
 192         CryptoDevBackendAsymOpInfo *asym_op_info = op_info->u.asym_op_info;
 193         len = asym_op_info->src_len;
 194
 195         if (unlikely(!backend->asym_stat)) {
 196             error_report("cryptodev: Unexpected asym operation");
 197             return -VIRTIO_CRYPTO_NOTSUPP;
 198         }
 199         switch (op_info->op_code) {
 200         case VIRTIO_CRYPTO_AKCIPHER_ENCRYPT:
 201             CryptodevAsymStatIncEncrypt(backend, len);
 202             break;
 203         case VIRTIO_CRYPTO_AKCIPHER_DECRYPT:
 204             CryptodevAsymStatIncDecrypt(backend, len);
 205             break;
 206         case VIRTIO_CRYPTO_AKCIPHER_SIGN:
 207             CryptodevAsymStatIncSign(backend, len);
 208             break;
 209         case VIRTIO_CRYPTO_AKCIPHER_VERIFY:
 210             CryptodevAsymStatIncVerify(backend, len);
 211             break;
 212         default:
 213             return -VIRTIO_CRYPTO_NOTSUPP;
 214         }
 215     } else if (algtype == QCRYPTODEV_BACKEND_ALG_SYM) {
 216         CryptoDevBackendSymOpInfo *sym_op_info = op_info->u.sym_op_info;
 217         len = sym_op_info->src_len;
 218
 219         if (unlikely(!backend->sym_stat)) {
 220             error_report("cryptodev: Unexpected sym operation");
 221             return -VIRTIO_CRYPTO_NOTSUPP;
 222         }
 223         switch (op_info->op_code) {
 224         case VIRTIO_CRYPTO_CIPHER_ENCRYPT:
 225             CryptodevSymStatIncEncrypt(backend, len);
 226             break;
 227         case VIRTIO_CRYPTO_CIPHER_DECRYPT:
 228             CryptodevSymStatIncDecrypt(backend, len);
 229             break;
 230         default:
 231             return -VIRTIO_CRYPTO_NOTSUPP;
 232         }
 233     } else {
 234         error_report("Unsupported cryptodev alg type: %" PRIu32 "", algtype);
 235         return -VIRTIO_CRYPTO_NOTSUPP;
 236     }
 237
 238     return len;
 239 }
 240
 241 static void cryptodev_backend_throttle_timer_cb(void *opaque)
 242 {
 243     CryptoDevBackend *backend = (CryptoDevBackend *)opaque;
 244     CryptoDevBackendOpInfo *op_info, *tmpop;
 245     int ret;
 246
 247     QTAILQ_FOREACH_SAFE(op_info, &backend->opinfos, next, tmpop) {
 248         QTAILQ_REMOVE(&backend->opinfos, op_info, next);
 249         ret = cryptodev_backend_account(backend, op_info);
 250         if (ret < 0) {
 251             op_info->cb(op_info->opaque, ret);
 252             continue;
 253         }
 254
 255         throttle_account(&backend->ts, true, ret);
 256         cryptodev_backend_operation(backend, op_info);
 257         if (throttle_enabled(&backend->tc) &&
 258             throttle_schedule_timer(&backend->ts, &backend->tt, true)) {
 259             break;
 260         }
 261     }
 262 }
 263
 264 int cryptodev_backend_crypto_operation(
 265                  CryptoDevBackend *backend,
 266                  CryptoDevBackendOpInfo *op_info)
 267 {
 268     int ret;
 269
 270     if (!throttle_enabled(&backend->tc)) {
 271         goto do_account;
 272     }
 273
 274     if (throttle_schedule_timer(&backend->ts, &backend->tt, true) ||
 275         !QTAILQ_EMPTY(&backend->opinfos)) {
 276         QTAILQ_INSERT_TAIL(&backend->opinfos, op_info, next);
 277         return 0;
 278     }
 279
 280 do_account:
 281     ret = cryptodev_backend_account(backend, op_info);
 282     if (ret < 0) {
 283         return ret;
 284     }
 285
 286     throttle_account(&backend->ts, true, ret);
 287
 288     return cryptodev_backend_operation(backend, op_info);
 289 }
 290
 291 static void
 292 cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name,
 293                              void *opaque, Error **errp)
 294 {
 295     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 296     uint32_t value = backend->conf.peers.queues;
 297
 298     visit_type_uint32(v, name, &value, errp);
 299 }
 300
 301 static void
 302 cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name,
 303                              void *opaque, Error **errp)
 304 {
 305     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 306     uint32_t value;
 307
 308     if (!visit_type_uint32(v, name, &value, errp)) {
 309         return;
 310     }
 311     if (!value) {
 312         error_setg(errp, "Property '%s.%s' doesn't take value '%" PRIu32 "'",
 313                    object_get_typename(obj), name, value);
 314         return;
 315     }
 316     backend->conf.peers.queues = value;
 317 }
 318
 319 static void cryptodev_backend_set_throttle(CryptoDevBackend *backend, int field,
 320                                            uint64_t value, Error **errp)
 321 {
 322     uint64_t orig = backend->tc.buckets[field].avg;
 323     bool enabled = throttle_enabled(&backend->tc);
 324
 325     if (orig == value) {
 326         return;
 327     }
 328
 329     backend->tc.buckets[field].avg = value;
 330     if (!throttle_enabled(&backend->tc)) {
 331         throttle_timers_destroy(&backend->tt);
 332         cryptodev_backend_throttle_timer_cb(backend); /* drain opinfos */
 333         return;
 334     }
 335
 336     if (!throttle_is_valid(&backend->tc, errp)) {
 337         backend->tc.buckets[field].avg = orig; /* revert change */
 338         return;
 339     }
 340
 341     if (!enabled) {
 342         throttle_init(&backend->ts);
 343         throttle_timers_init(&backend->tt, qemu_get_aio_context(),
 344                              QEMU_CLOCK_REALTIME,
 345                              cryptodev_backend_throttle_timer_cb, /* FIXME */
 346                              cryptodev_backend_throttle_timer_cb, backend);
 347     }
 348
 349     throttle_config(&backend->ts, QEMU_CLOCK_REALTIME, &backend->tc);
 350 }
 351
 352 static void cryptodev_backend_get_bps(Object *obj, Visitor *v,
 353                                       const char *name, void *opaque,
 354                                       Error **errp)
 355 {
 356     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 357     uint64_t value = backend->tc.buckets[THROTTLE_BPS_TOTAL].avg;
 358
 359     visit_type_uint64(v, name, &value, errp);
 360 }
 361
 362 static void cryptodev_backend_set_bps(Object *obj, Visitor *v, const char *name,
 363                                       void *opaque, Error **errp)
 364 {
 365     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 366     uint64_t value;
 367
 368     if (!visit_type_uint64(v, name, &value, errp)) {
 369         return;
 370     }
 371
 372     cryptodev_backend_set_throttle(backend, THROTTLE_BPS_TOTAL, value, errp);
 373 }
 374
 375 static void cryptodev_backend_get_ops(Object *obj, Visitor *v, const char *name,
 376                                       void *opaque, Error **errp)
 377 {
 378     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 379     uint64_t value = backend->tc.buckets[THROTTLE_OPS_TOTAL].avg;
 380
 381     visit_type_uint64(v, name, &value, errp);
 382 }
 383
 384 static void cryptodev_backend_set_ops(Object *obj, Visitor *v,
 385                                        const char *name, void *opaque,
 386                                        Error **errp)
 387 {
 388     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 389     uint64_t value;
 390
 391     if (!visit_type_uint64(v, name, &value, errp)) {
 392         return;
 393     }
 394
 395     cryptodev_backend_set_throttle(backend, THROTTLE_OPS_TOTAL, value, errp);
 396 }
 397
 398 static void
 399 cryptodev_backend_complete(UserCreatable *uc, Error **errp)
 400 {
 401     CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc);
 402     CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc);
 403     uint32_t services;
 404     uint64_t value;
 405
 406     QTAILQ_INIT(&backend->opinfos);
 407     value = backend->tc.buckets[THROTTLE_OPS_TOTAL].avg;
 408     cryptodev_backend_set_throttle(backend, THROTTLE_OPS_TOTAL, value, errp);
 409     value = backend->tc.buckets[THROTTLE_BPS_TOTAL].avg;
 410     cryptodev_backend_set_throttle(backend, THROTTLE_BPS_TOTAL, value, errp);
 411
 412     if (bc->init) {
 413         bc->init(backend, errp);
 414     }
 415
 416     services = backend->conf.crypto_services;
 417     if (services & (1 << QCRYPTODEV_BACKEND_SERVICE_CIPHER)) {
 418         backend->sym_stat = g_new0(CryptodevBackendSymStat, 1);
 419     }
 420
 421     if (services & (1 << QCRYPTODEV_BACKEND_SERVICE_AKCIPHER)) {
 422         backend->asym_stat = g_new0(CryptodevBackendAsymStat, 1);
 423     }
 424 }
 425
 426 void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used)
 427 {
 428     backend->is_used = used;
 429 }
 430
 431 bool cryptodev_backend_is_used(CryptoDevBackend *backend)
 432 {
 433     return backend->is_used;
 434 }
 435
 436 void cryptodev_backend_set_ready(CryptoDevBackend *backend, bool ready)
 437 {
 438     backend->ready = ready;
 439 }
 440
 441 bool cryptodev_backend_is_ready(CryptoDevBackend *backend)
 442 {
 443     return backend->ready;
 444 }
 445
 446 static bool
 447 cryptodev_backend_can_be_deleted(UserCreatable *uc)
 448 {
 449     return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
 450 }
 451
 452 static void cryptodev_backend_instance_init(Object *obj)
 453 {
 454     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 455
 456     /* Initialize devices' queues property to 1 */
 457     object_property_set_int(obj, "queues", 1, NULL);
 458
 459     throttle_config_init(&backend->tc);
 460 }
 461
 462 static void cryptodev_backend_finalize(Object *obj)
 463 {
 464     CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
 465
 466     cryptodev_backend_cleanup(backend, NULL);
 467     if (throttle_enabled(&backend->tc)) {
 468         throttle_timers_destroy(&backend->tt);
 469     }
 470 }
 471
 472 static StatsList *cryptodev_backend_stats_add(const char *name, int64_t *val,
 473                                               StatsList *stats_list)
 474 {
 475     Stats *stats = g_new0(Stats, 1);
 476
 477     stats->name = g_strdup(name);
 478     stats->value = g_new0(StatsValue, 1);
 479     stats->value->type = QTYPE_QNUM;
 480     stats->value->u.scalar = *val;
 481
 482     QAPI_LIST_PREPEND(stats_list, stats);
 483     return stats_list;
 484 }
 485
 486 static int cryptodev_backend_stats_query(Object *obj, void *data)
 487 {
 488     StatsArgs *stats_args = data;
 489     StatsResultList **stats_results = stats_args->result.stats;
 490     StatsList *stats_list = NULL;
 491     StatsResult *entry;
 492     CryptoDevBackend *backend;
 493     CryptodevBackendSymStat *sym_stat;
 494     CryptodevBackendAsymStat *asym_stat;
 495
 496     if (!object_dynamic_cast(obj, TYPE_CRYPTODEV_BACKEND)) {
 497         return 0;
 498     }
 499
 500     backend = CRYPTODEV_BACKEND(obj);
 501     sym_stat = backend->sym_stat;
 502     if (sym_stat) {
 503         stats_list = cryptodev_backend_stats_add(SYM_ENCRYPT_OPS_STR,
 504                          &sym_stat->encrypt_ops, stats_list);
 505         stats_list = cryptodev_backend_stats_add(SYM_DECRYPT_OPS_STR,
 506                          &sym_stat->decrypt_ops, stats_list);
 507         stats_list = cryptodev_backend_stats_add(SYM_ENCRYPT_BYTES_STR,
 508                          &sym_stat->encrypt_bytes, stats_list);
 509         stats_list = cryptodev_backend_stats_add(SYM_DECRYPT_BYTES_STR,
 510                          &sym_stat->decrypt_bytes, stats_list);
 511     }
 512
 513     asym_stat = backend->asym_stat;
 514     if (asym_stat) {
 515         stats_list = cryptodev_backend_stats_add(ASYM_ENCRYPT_OPS_STR,
 516                          &asym_stat->encrypt_ops, stats_list);
 517         stats_list = cryptodev_backend_stats_add(ASYM_DECRYPT_OPS_STR,
 518                          &asym_stat->decrypt_ops, stats_list);
 519         stats_list = cryptodev_backend_stats_add(ASYM_SIGN_OPS_STR,
 520                          &asym_stat->sign_ops, stats_list);
 521         stats_list = cryptodev_backend_stats_add(ASYM_VERIFY_OPS_STR,
 522                          &asym_stat->verify_ops, stats_list);
 523         stats_list = cryptodev_backend_stats_add(ASYM_ENCRYPT_BYTES_STR,
 524                          &asym_stat->encrypt_bytes, stats_list);
 525         stats_list = cryptodev_backend_stats_add(ASYM_DECRYPT_BYTES_STR,
 526                          &asym_stat->decrypt_bytes, stats_list);
 527         stats_list = cryptodev_backend_stats_add(ASYM_SIGN_BYTES_STR,
 528                          &asym_stat->sign_bytes, stats_list);
 529         stats_list = cryptodev_backend_stats_add(ASYM_VERIFY_BYTES_STR,
 530                          &asym_stat->verify_bytes, stats_list);
 531     }
 532
 533     entry = g_new0(StatsResult, 1);
 534     entry->provider = STATS_PROVIDER_CRYPTODEV;
 535     entry->qom_path = object_get_canonical_path(obj);
 536     entry->stats = stats_list;
 537     QAPI_LIST_PREPEND(*stats_results, entry);
 538
 539     return 0;
 540 }
 541
 542 static void cryptodev_backend_stats_cb(StatsResultList **result,
 543                                        StatsTarget target,
 544                                        strList *names, strList *targets,
 545                                        Error **errp)
 546 {
 547     switch (target) {
 548     case STATS_TARGET_CRYPTODEV:
 549     {
 550         Object *objs = container_get(object_get_root(), "/objects");
 551         StatsArgs stats_args;
 552         stats_args.result.stats = result;
 553         stats_args.names = names;
 554         stats_args.errp = errp;
 555
 556         object_child_foreach(objs, cryptodev_backend_stats_query, &stats_args);
 557         break;
 558     }
 559     default:
 560         break;
 561     }
 562 }
 563
 564 static StatsSchemaValueList *cryptodev_backend_schemas_add(const char *name,
 565                                  StatsSchemaValueList *list)
 566 {
 567     StatsSchemaValueList *schema_entry = g_new0(StatsSchemaValueList, 1);
 568
 569     schema_entry->value = g_new0(StatsSchemaValue, 1);
 570     schema_entry->value->type = STATS_TYPE_CUMULATIVE;
 571     schema_entry->value->name = g_strdup(name);
 572     schema_entry->next = list;
 573
 574     return schema_entry;
 575 }
 576
 577 static void cryptodev_backend_schemas_cb(StatsSchemaList **result,
 578                                          Error **errp)
 579 {
 580     StatsSchemaValueList *stats_list = NULL;
 581     const char *sym_stats[] = { SYM_ENCRYPT_OPS_STR, SYM_DECRYPT_OPS_STR,
 582                                 SYM_ENCRYPT_BYTES_STR, SYM_DECRYPT_BYTES_STR };
 583     const char *asym_stats[] = { ASYM_ENCRYPT_OPS_STR, ASYM_DECRYPT_OPS_STR,
 584                                  ASYM_SIGN_OPS_STR, ASYM_VERIFY_OPS_STR,
 585                                  ASYM_ENCRYPT_BYTES_STR, ASYM_DECRYPT_BYTES_STR,
 586                                  ASYM_SIGN_BYTES_STR, ASYM_VERIFY_BYTES_STR };
 587
 588     for (int i = 0; i < ARRAY_SIZE(sym_stats); i++) {
 589         stats_list = cryptodev_backend_schemas_add(sym_stats[i], stats_list);
 590     }
 591
 592     for (int i = 0; i < ARRAY_SIZE(asym_stats); i++) {
 593         stats_list = cryptodev_backend_schemas_add(asym_stats[i], stats_list);
 594     }
 595
 596     add_stats_schema(result, STATS_PROVIDER_CRYPTODEV, STATS_TARGET_CRYPTODEV,
 597                      stats_list);
 598 }
 599
 600 static void
 601 cryptodev_backend_class_init(ObjectClass *oc, void *data)
 602 {
 603     UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
 604
 605     ucc->complete = cryptodev_backend_complete;
 606     ucc->can_be_deleted = cryptodev_backend_can_be_deleted;
 607
 608     QTAILQ_INIT(&crypto_clients);
 609     object_class_property_add(oc, "queues", "uint32",
 610                               cryptodev_backend_get_queues,
 611                               cryptodev_backend_set_queues,
 612                               NULL, NULL);
 613     object_class_property_add(oc, "throttle-bps", "uint64",
 614                               cryptodev_backend_get_bps,
 615                               cryptodev_backend_set_bps,
 616                               NULL, NULL);
 617     object_class_property_add(oc, "throttle-ops", "uint64",
 618                               cryptodev_backend_get_ops,
 619                               cryptodev_backend_set_ops,
 620                               NULL, NULL);
 621
 622     add_stats_callbacks(STATS_PROVIDER_CRYPTODEV, cryptodev_backend_stats_cb,
 623                         cryptodev_backend_schemas_cb);
 624 }
 625
 626 static const TypeInfo cryptodev_backend_info = {
 627     .name = TYPE_CRYPTODEV_BACKEND,
 628     .parent = TYPE_OBJECT,
 629     .instance_size = sizeof(CryptoDevBackend),
 630     .instance_init = cryptodev_backend_instance_init,
 631     .instance_finalize = cryptodev_backend_finalize,
 632     .class_size = sizeof(CryptoDevBackendClass),
 633     .class_init = cryptodev_backend_class_init,
 634     .interfaces = (InterfaceInfo[]) {
 635         { TYPE_USER_CREATABLE },
 636         { }
 637     }
 638 };
 639
 640 static void
 641 cryptodev_backend_register_types(void)
 642 {
 643     type_register_static(&cryptodev_backend_info);
 644 }
 645
 646 type_init(cryptodev_backend_register_types);